US2589330A - Anticaking agent for cleansing - Google Patents
Anticaking agent for cleansing Download PDFInfo
- Publication number
- US2589330A US2589330A US2589330DA US2589330A US 2589330 A US2589330 A US 2589330A US 2589330D A US2589330D A US 2589330DA US 2589330 A US2589330 A US 2589330A
- Authority
- US
- United States
- Prior art keywords
- caking
- magnesium
- silica
- cleansing
- trisodium phosphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 239000001488 sodium phosphate Substances 0.000 claims description 28
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 28
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 26
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 22
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 20
- 229910052749 magnesium Inorganic materials 0.000 claims description 20
- 239000011777 magnesium Substances 0.000 claims description 20
- 150000001875 compounds Chemical class 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 6
- SOBHUZYZLFQYFK-UHFFFAOYSA-K trisodium;hydroxy-[[phosphonatomethyl(phosphonomethyl)amino]methyl]phosphinate Chemical compound [Na+].[Na+].[Na+].OP(O)(=O)CN(CP(O)([O-])=O)CP([O-])([O-])=O SOBHUZYZLFQYFK-UHFFFAOYSA-K 0.000 claims 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 60
- 239000000203 mixture Substances 0.000 description 58
- 239000000377 silicon dioxide Substances 0.000 description 30
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 18
- 235000012245 magnesium oxide Nutrition 0.000 description 14
- 239000001692 EU approved anti-caking agent Substances 0.000 description 10
- 239000004615 ingredient Substances 0.000 description 10
- 239000000395 magnesium oxide Substances 0.000 description 10
- ZLNQQNXFFQJAID-UHFFFAOYSA-L Magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 8
- 239000011776 magnesium carbonate Substances 0.000 description 8
- 235000014380 magnesium carbonate Nutrition 0.000 description 8
- 239000004115 Sodium Silicate Substances 0.000 description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 6
- 238000005296 abrasive Methods 0.000 description 6
- 150000001447 alkali salts Chemical class 0.000 description 6
- 229910052911 sodium silicate Inorganic materials 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L MgCl2 Chemical group [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000005712 crystallization Effects 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical group [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical class [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L mgso4 Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- -1 oxides Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241000229754 Iva xanthiifolia Species 0.000 description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H Magnesium phosphate tribasic Chemical class [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 2
- 229940049964 Oleate Drugs 0.000 description 2
- 229940035295 Ting Drugs 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive Effects 0.000 description 2
- 229910000318 alkali metal phosphate Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229940077744 antacids containing magnesium compounds Drugs 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000003841 chloride salts Chemical class 0.000 description 2
- 230000002939 deleterious Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 150000002681 magnesium compounds Chemical class 0.000 description 2
- 239000004137 magnesium phosphate Substances 0.000 description 2
- 235000010994 magnesium phosphates Nutrition 0.000 description 2
- 235000019359 magnesium stearate Nutrition 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-M oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC([O-])=O ZQPPMHVWECSIRJ-KTKRTIGZSA-M 0.000 description 2
- 150000002942 palmitic acid derivatives Chemical class 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 230000002035 prolonged Effects 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-M stearate Chemical class CCCCCCCCCCCCCCCCCC([O-])=O QIQXTHQIDYTFRH-UHFFFAOYSA-M 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/14—Fillers; Abrasives ; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/24—Phosphorous; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/10—Washing or bathing preparations
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/06—Phosphates, including polyphosphates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/1233—Carbonates, e.g. calcite or dolomite
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/20—Water-insoluble oxides
Definitions
- This 1 invention relates to' mixtures of a powdered detergent and an abrasive, and more particularly to cleansing'powders having'therein trisodium phosphate and" silica;
- Another object of this invention is to provide a powdered mixture containing silica and an alkali salt having water of crystallization thereinwhich, after prolonged storage, may be readily dispensedfrom a'container.
- sodium silicate is an efiicient adhesive the formation of which in a cleansing'powder would bond the particles together into a solid mass not suitable for being readily dispensed from a container having small discharge openings therein.
- the sodium silicate is thought to be the result of areaction between silica and the sodium of the alkali salt in the presence of moisture.
- the-alkali salt-trisodium phosphate contains several molecules of water of crystallization, there may be present a sufiicient amount of moisture to cause the objectionable reaction to take place even when moisture from the atmosphere is excluded.
- magnesium compositions in general are superior to the non-moisture absorbent anticaking agents and to the chemical anti-caking agents, such as certain aluminum compounds,
- magnesium oxide because of its unexpected remarkable anti-caking qualities "in a trisodium phosphate and silica mixture.
- Applicants have discovered that as little as 0.1 per cent magnesium oxide will very efiectively prevent the caking of mixtures comprised substantially of finely divided silica and trisodium phosphate in all states of fineness. It has also been found that all grades of magnesium oxide may be'employed as antisticking agents. Thus, applicants have employed the following magnesium oxides to completely prevent caking of the aforesaid mixtures: U. S.
- the other magnesium compounds previously cited have been employed in similar proportions and have proved to be very effective as anti-caking agents when employed between approximately 0.5 per cent and Larger amounts have no Thus; in some 5 per cent.
- ma iesium carbonate has also been found to be effec- ;ive as an anti-caking agent. The quantity of ;he carbonate necessary to prevent caking, how- :ver, is somewhat greater than the required mininum amounts of the other compounds.
- Example I 30% trisodium phosphate 79.9% silica ).l% magnesium oxideU. S. P., light
- the powdered ingredients were intimately nixed and a portion of the mixture subjected to ;he 16-hour caking test previously described. No )bjectionable caking was observed.
- Example II 20% trisodium phosphate 79.8 silica 3.2% calcined magnesite The powdered ingredients were intimately nixed and 30 grams of the resulting mixture subjected to the above-described 3-hour caking test. The amount of residue after the completion of the said test was less than 0.1 gram and was considered negligible.
- Example III 22% trisodium phosphate 77% silica 1% calcined magnesite The powdered ingredients were intimately mixed and 30 grams of the mixture subjected to the 3-hour caking test, wherein a residue of approximately 0.2 gram was considered negligible.
- Example IV 20% trisodium phosphate 78% silica 2% magnesium powder The powdered ingredients were intimately mixed and a portion of the mixture subjected to 4 the said 16-hour caking test. No objectionable caking was observed.
- Example V trisodium phosphate mixed and a portion of the mixture subjected to the l6-hour caking test. No objectionable caking was observed.
- a substantially non-caking cleansing powder consisting essentially of finely divided trisodium phosphate, particles of silica as an abrasive, and an amount from 0.1 to about 3 percent of a powdered anti-caking agent selected from the group consisting of metallic magnesium and compounds thereof.
- composition substantially as described in claim 1 wherein the anti-caking agent is powdered magnesium sulfate.
- composition substantially as described in claim 1 wherein the anti-caking agent is magnesium stearate.
- composition substantially as described in claim 1 wherein the anti-caking agent is magnesium oxide.
- composition substantially as described in claim 1 wherein the anti-caking agent is magnesium chloride.
- composition substantially as, described in claim 1 wherein the anti-caking agent is magnesium metal.
Description
Patented Mar. 18, 1952 ANTICAKING AGENT FOR CLEANSING POWDER Puray "Bradford; Palos Park, ans j Herman .J.
White, Lansing;:Ill., assign'ors to Swift & Company, Chicago,--Ill., a corporation-of Illinois i No Drawing; Application-August '5, 1948;
Ser'ialNo. 42,743-- s Claims.- (c1. 252-440) This 1 invention relates to' mixtures of a powdered detergent and an abrasive, and more particularly to cleansing'powders having'therein trisodium phosphate and" silica;
Cleansing powders containing trisodium phosphate and silica are 'well" known, and such powders have been subject to caking under most normal atmospheric conditions and are thereby rendereddifiicult' to remove from a-package, and particularly from packages having= relatively small openings through whichthe powder is dis-' pense'd.
It'is an object of this invention to providea powdered mixture with an improved'anti-caking agent that will completely prevent caking and maintaining'the powder in a fluent state whereby it 'will be readily removed 'or "dispensed-from 'a' container.
It is a'further object of this invention to provide a powdered mixture-with an anti-caking" agent capable of maintaining the mixture ina' non-caking condition;'even when present in very small amounts.
Another object of this invention is to provide a powdered mixture containing silica and an alkali salt having water of crystallization thereinwhich, after prolonged storage, may be readily dispensedfrom a'container.
Other objects of the invention will be apparent from the description and claims to follow.
It is generally believed that powders containing trisodium phosphate and silica are subject to caking because of the formation of sodium silicate. And, as'is well known, sodium silicate is an efiicient adhesive the formation of which in a cleansing'powder would bond the particles together into a solid mass not suitable for being readily dispensed from a container having small discharge openings therein. -The sodium silicate is thought to be the result of areaction between silica and the sodium of the alkali salt in the presence of moisture. As the-alkali salt-trisodium phosphate contains several molecules of water of crystallization, there may be present a sufiicient amount of moisture to cause the objectionable reaction to take place even when moisture from the atmosphere is excluded. The latter is of considerable importance, since it explains the relative inefiectiveness as anti-caking agents for the instant powdered mixtures of those compounds which act simply to prevent the absorption of moisture from the atmosphere by the deliquescent substances. Thus, while the use of the latter type of anti-caking agents might have some efiect in preventing caking where deliquesnesium compounds in general, including magnesium phosphates, oxides, stearates, nitrates,-
sulphates, chlorides, palmitates, oleate's, as well as powdered magnesium metal, have superior anti-caking properties for the mixtures employed in the present invention;
While the magnesium compositions in general are superior to the non-moisture absorbent anticaking agents and to the chemical anti-caking agents, such as certain aluminum compounds,
nesium oxide because of its unexpected remarkable anti-caking qualities "in a trisodium phosphate and silica mixture. Applicants have discovered that as little as 0.1 per cent magnesium oxide will very efiectively prevent the caking of mixtures comprised substantially of finely divided silica and trisodium phosphate in all states of fineness. It has also been found that all grades of magnesium oxide may be'employed as antisticking agents. Thus, applicants have employed the following magnesium oxides to completely prevent caking of the aforesaid mixtures: U. S.
P. magnesium oxide-light, C. P. magnesium While as little oxide, and calcined magnesite. as 0.1 per cent U. S. P. magnesium oxide-light will efiectively prevent caking, it has been found desirable to employislightly larger amounts of the'heavier grades of magnesium oxides. For example, 0.2 per cent of calcined magnesite has been found to effectively prevent caking of the aforesaid mixtures. deleterious eiiect on the entire mixture and do not detract from the cleansing efficiency of-the product but, on the contrary, appear to impart a lubric'z'a'ting property to the mixture which improves its overall efiectiveness. instances it has been found desirable to employ 1 per cent magnesium oxide as an anti-caking agent. In other instances as much as 5 per cent of the anti-caking agent may be employed.
In addition to the above-mentioned magnesium oxide compound, the other magnesium compounds previously cited have been employed in similar proportions and have proved to be very effective as anti-caking agents when employed between approximately 0.5 per cent and Larger amounts have no Thus; in some 5 per cent. In addition to the particular ma iesium compounds set forth heretofore, ma iesium carbonate has also been found to be effec- ;ive as an anti-caking agent. The quantity of ;he carbonate necessary to prevent caking, how- :ver, is somewhat greater than the required mininum amounts of the other compounds.
In evaluating the effectiveness of the various mti-caking compositions, various mixtures were exposed to an accelerated caking test in which ;he powdered ingredients were placed in a shalow porcelain evaporating dish and placed in an )ven maintained at 140 F. at a relative humid- .ty of '70 per cent for a period of 16 hours. On :ooling to room temperature the contents of each :lish was discharged and examined for hard :rystalline masses or lumps. As an alternative nethod, the samples of cleanser were heated in 1. chamber maintained at a constant humidity of 37 per cent for a period of 3 hours and then :ransierred to a sieve and shaken in a mechanical maker for 2 minutes. The weight of the residue in the sieve was taken as a measure of the caking zendency of the cleanser. Each of the above ;ests is applicable to the present mixtures.
To further illustrate the present invention, the following specific examples are set forth:
Example I 30% trisodium phosphate 79.9% silica ).l% magnesium oxideU. S. P., light The powdered ingredients were intimately nixed and a portion of the mixture subjected to ;he 16-hour caking test previously described. No )bjectionable caking was observed.
Example II 20% trisodium phosphate 79.8 silica 3.2% calcined magnesite The powdered ingredients were intimately nixed and 30 grams of the resulting mixture subjected to the above-described 3-hour caking test. The amount of residue after the completion of the said test was less than 0.1 gram and was considered negligible.
Example III 22% trisodium phosphate 77% silica 1% calcined magnesite The powdered ingredients were intimately mixed and 30 grams of the mixture subjected to the 3-hour caking test, wherein a residue of approximately 0.2 gram was considered negligible.
Example IV 20% trisodium phosphate 78% silica 2% magnesium powder The powdered ingredients were intimately mixed and a portion of the mixture subjected to 4 the said 16-hour caking test. No objectionable caking was observed.
Example V trisodium phosphate mixed and a portion of the mixture subjected to the l6-hour caking test. No objectionable caking was observed.
While the foregoing description has referred particularly to trisodium phosphate as the alkali salt present in combination with the silica, it is to be understood that other alkali metal phosphate salts and other caustic alkali detergent compounds are within the scope of applicants invention. Also the abrasive composition employed by applicants should not be restricted to silica, since silica-containing mixtures, such as feldspar, are also within the purview of the present invention.
It should be obvious that various modifications will suggest themselves to those skilled in the art, and it should be understood that such modifications may be made without departing from the spirit and scope of this invention.
We claim:
1. A substantially non-caking cleansing powder consisting essentially of finely divided trisodium phosphate, particles of silica as an abrasive, and an amount from 0.1 to about 3 percent of a powdered anti-caking agent selected from the group consisting of metallic magnesium and compounds thereof.
2. A composition substantially as described in claim 1 wherein the anti-caking agent is powdered magnesium sulfate.
3. A composition substantially as described in claim 1 wherein the anti-caking agent is magnesium stearate.
4. A composition substantially as described in claim 1 wherein the anti-caking agent is magnesium oxide.
5. A composition substantially as described in claim 1 wherein the anti-caking agent is magnesium chloride.
6. A composition substantially as, described in claim 1 wherein the anti-caking agent is magnesium metal.
PURDY BRADFORD. HERMAN J. WHITE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,130,869 Block et a1 Sept. 20, 1938 2,257,545 Curtis Sept. 30, 1941 2,275,049 Keller Mar. 3, 1942 2,385,075 Gunther Sept. 18, 1945
Claims (1)
1. A SUBSTANTIALLY NON-CAKING CLEANSING POWDER CONSISTING ESSENTIALLY OF FINELY DIVIDED TRISODIUM PHOSPHATE, PARTICLES OF FINELY DIVIDED TRISODIUM AN AMOUNT FROM 0.1 TO ABOUT 3 PERCENT OF A POWDERED ANTI-CAKING AGENT SELECTED FROM THE GROUP CONSISTING OF METALLIC MAGNESIUM AND COMPOUNDS THEREOF.
Publications (1)
Publication Number | Publication Date |
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US2589330A true US2589330A (en) | 1952-03-18 |
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US2589330D Expired - Lifetime US2589330A (en) | Anticaking agent for cleansing |
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US (1) | US2589330A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2684947A (en) * | 1954-07-27 | Noncaking silicofujoride- | ||
US2861024A (en) * | 1957-11-12 | 1958-11-18 | Merck & Co Inc | Antibiotic dusts |
DE1168589B (en) * | 1956-07-27 | 1964-04-23 | Dalli Werke Maeurer & Wirtz | Abrasives for cleaning purposes |
US3518112A (en) * | 1966-07-01 | 1970-06-30 | Inventa Ag | Process for the prevention of agglomeration of polyester particles |
US3615185A (en) * | 1968-11-22 | 1971-10-26 | Fmc Corp | Process for the production of trisodium phosphate |
US3879478A (en) * | 1972-02-23 | 1975-04-22 | Commercial Solvents Corp | Non-caking composition of 2-nitro-2-methyl-1-propanol |
US4016041A (en) * | 1975-02-12 | 1977-04-05 | Lever Brothers Company | Process of making granular enzymes of reduced stickiness |
US4196095A (en) * | 1978-07-11 | 1980-04-01 | Church & Dwight Co. Inc. | Dry blending using magnesium stearate |
US4576835A (en) * | 1984-03-24 | 1986-03-18 | Henkel Kommanditgesellschaft Auf Aktien | Aqueous release agents |
US4859774A (en) * | 1985-06-21 | 1989-08-22 | Air Products And Chemicals Inc. | Flowable triethylenediamine |
WO2004085588A1 (en) * | 2003-03-24 | 2004-10-07 | Unilever Plc | Detergent composition or component therefor |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2130869A (en) * | 1935-08-07 | 1938-09-20 | Blockson Chemical Co | Manufacture of noncaking powder composition |
US2257545A (en) * | 1937-12-24 | 1941-09-30 | Monsanto Chemicals | Detergent composition |
US2275049A (en) * | 1942-03-03 | Polish | ||
US2385075A (en) * | 1945-09-18 | Detergent composition |
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- US US2589330D patent/US2589330A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2275049A (en) * | 1942-03-03 | Polish | ||
US2385075A (en) * | 1945-09-18 | Detergent composition | ||
US2130869A (en) * | 1935-08-07 | 1938-09-20 | Blockson Chemical Co | Manufacture of noncaking powder composition |
US2257545A (en) * | 1937-12-24 | 1941-09-30 | Monsanto Chemicals | Detergent composition |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2684947A (en) * | 1954-07-27 | Noncaking silicofujoride- | ||
DE1168589B (en) * | 1956-07-27 | 1964-04-23 | Dalli Werke Maeurer & Wirtz | Abrasives for cleaning purposes |
US2861024A (en) * | 1957-11-12 | 1958-11-18 | Merck & Co Inc | Antibiotic dusts |
US3518112A (en) * | 1966-07-01 | 1970-06-30 | Inventa Ag | Process for the prevention of agglomeration of polyester particles |
US3615185A (en) * | 1968-11-22 | 1971-10-26 | Fmc Corp | Process for the production of trisodium phosphate |
US3879478A (en) * | 1972-02-23 | 1975-04-22 | Commercial Solvents Corp | Non-caking composition of 2-nitro-2-methyl-1-propanol |
US4016041A (en) * | 1975-02-12 | 1977-04-05 | Lever Brothers Company | Process of making granular enzymes of reduced stickiness |
US4196095A (en) * | 1978-07-11 | 1980-04-01 | Church & Dwight Co. Inc. | Dry blending using magnesium stearate |
US4576835A (en) * | 1984-03-24 | 1986-03-18 | Henkel Kommanditgesellschaft Auf Aktien | Aqueous release agents |
US4645537A (en) * | 1984-03-24 | 1987-02-24 | Henkel Kommanditgesellschaft Auf Aktien | Aqueous release agents |
US4774138A (en) * | 1984-03-24 | 1988-09-27 | Henkel Kommanditgesellschaft Auf Aktien | Aqueous release agents for hot-melt adhesives |
US4859774A (en) * | 1985-06-21 | 1989-08-22 | Air Products And Chemicals Inc. | Flowable triethylenediamine |
WO2004085588A1 (en) * | 2003-03-24 | 2004-10-07 | Unilever Plc | Detergent composition or component therefor |
US20070042929A1 (en) * | 2003-03-24 | 2007-02-22 | Arie Krijgsman | Detergent composition or component therefor |
US7674762B2 (en) | 2003-03-24 | 2010-03-09 | The Sun Products Corporation | Detergent composition or component therefor |
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